[PATCH] D45976: [InstCombine] Simplify Add with remainder expressions as operands.

[Bixia Zheng via Phabricator via llvm-commits]

bixia created this revision.
bixia added a reviewer: sanjoy.
Herald added a subscriber: jlebar.

Simplify integer add expression X % C0 + (( X / C0 ) % C1) * C0 to
X % (C0 * C1).
Add test cases for this new optimization.


Repository:
  rL LLVM

https://reviews.llvm.org/D45976

Files:
  lib/Transforms/InstCombine/InstCombineAddSub.cpp
  lib/Transforms/InstCombine/InstCombineInternal.h
  test/Transforms/InstCombine/add4.ll

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